Add a REST Hello World example

2025-07-16 13:10:24 +00:00 · 2012-07-22 04:46:05 +02:00 · 2012-07-22 04:46:05 +02:00 · f212cafad2
commit f212cafad2
parent 6ea32d605d
8 changed files with 141 additions and 0 deletions
--- a/examples/rest_hello_world/src/toppage_handler.erl
+++ b/examples/rest_hello_world/src/toppage_handler.erl
@ -0,0 +1,39 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+%% @doc Hello world handler.
+-module(toppage_handler).
+
+-export([init/3]).
+-export([content_types_provided/2]).
+-export([hello_to_html/2]).
+-export([hello_to_json/2]).
+-export([hello_to_text/2]).
+
+init(_Transport, _Req, []) ->
+	{upgrade, protocol, cowboy_http_rest}.
+
+content_types_provided(Req, State) ->
+	{[
+		{<<"text/html">>, hello_to_html},
+		{<<"application/json">>, hello_to_json},
+		{<<"text/plain">>, hello_to_text}
+	], Req, State}.
+
+hello_to_html(Req, State) ->
+	Body = <<"<html>
+<head>
+	<meta charset=\"utf-8\">
+	<title>REST Hello World!</title>
+</head>
+<body>
+	<p>REST Hello World as HTML!</p>
+</body>
+</html>">>,
+	{Body, Req, State}.
+
+hello_to_json(Req, State) ->
+	Body = <<"{\"rest\": \"Hello World!\"}">>,
+	{Body, Req, State}.
+
+hello_to_text(Req, State) ->
+	{<<"REST Hello World as text!">>, Req, State}.